Best year time to visit Sundby

General weather information about Sundby

Average annual temperature is 4.5 °C

Absolute maximum temperature: 29.4 °C

Absolute minimum temperature: -21.1 °C

Number of sunny days: 139 days

Number of rainy days: 159 days

Number of snow days: 67 days

Look at detailed online map of Sundby

* Weather data for Sundby Finland is based on climate observations for 2026 year

Sundby air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	5.0	5.3	4.6	16.9	22.5	28.9	25.7	29.4	23.0	12.5	5.0	4.5
Average daytime temperature (°C)	-0.9	-0.5	-1.4	7.2	14.4	20.1	19.5	20.4	16.9	4.6	-1.3	-4.3
Average temperature (°C)	-2.6	-2.8	-4.8	1.4	9.5	15.6	16.0	16.5	13.6	1.7	-3.4	-6.5
Average night temperature (°C)	-4.9	-5.5	-8.7	-3.8	4.4	9.9	11.9	12.6	10.0	-0.8	-6.3	-9.4
Absolute minimum temperature (°C)	-15.6	-13.8	-18.7	-14.5	-2.3	2.3	9.4	8.7	2.6	-8.7	-21.1	-16.3

Sundby monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	7.0	10.0	13.0	16.0	19.0	20.0	20.0	17.0	14.0	11.0	8.0	5.0
Daylight mean duration (h)	5.8	8.6	11.8	15.0	18.2	20.4	19.3	16.2	13.0	9.8	6.7	4.7
Daylight minimum duration (h)	4.0	7.0	10.0	13.0	16.0	19.0	17.0	14.0	11.0	8.0	5.0	4.0
Sunshine mean duration (h)	1.3	3.1	5.8	9.5	13.0	14.7	11.8	10.1	6.4	4.9	0.7	0.4
Precipitation (mm)	58	24	45	43	39	29	168	146	97	90	65	35
Sunny days	9	14	12	20	16	17	4	6	7	14	9	11
Rainy days	11	4	5	9	12	13	27	25	23	15	11	4
Snow days	11	10	14	1	3	0	0	0	0	2	10	16

Sundby - weather forecast by months

Sundby weather in january Sundby weather in february Sundby weather in march Sundby weather in april Sundby weather in may Sundby weather in june Sundby weather in july Sundby weather in august Sundby weather in september Sundby weather in october Sundby weather in november Sundby weather in december

Best time to visit Sundby:

The best time to visit Sundby during the most sunny months:

April — 9.5(h)
May — 13.0(h)
June — 14.7(h)
July — 11.8(h)
August — 10.1(h)

Months with the longest average daylight duration in Sundby:

May — 18.2(h)
June — 20.4(h)
July — 19.3(h)
August — 16.2(h)

The largest precipitation sum in Sundby is at

July — 168(mm)

August — 146(mm)

September — 97(mm)

October — 90(mm)

Weather forecast in the closest to Sundby admin centers